for any budget compromise to gain traction, the president likely will have to persuade democrats at the capitol, as well as his liberal base of supporters, to accept cuts in favored programs. and democrats already are complaining, strenuously, that the president's proposal does not appear to include any immediate increase in tax revenues. vermont independent senator bernie sanders was among those voicing anger today. >> i don't think it's going to be balanced at all. i think it will likely come down very heavily on the backs of the middle class families, the elderly, sick, and the poor. sure, we want to move to deficit reduction. but it's not a big deal/small deal; it's a fair deal, it is shared sacrifice. >> holman: and justin ruben, head of the liberal group moveon.org, denounced what he called a betrayal. in a statement last night, he said: "the democratic base did not work night and day to elect democrats so that they could cave to tea party extremists who are intent on gutting the social safety net." the deadline for avoiding national default is august 2.